• Effects of acute exposure to dispersed oil and burned oil residue on long-term survival, growth, and reproductive development in polar cod (Boreogadus saida) 

      Bender, Morgan Lizabeth; Frantzen, marianne; Camus, Lionel; Le Floch, Sebastien; Palerud, Jocelyn Hernandez; Nahrgang, Jasmine (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-05)
      The present study investigates the potential long-term physiological effects on maturing polar cod (<i>Boreogadus saida</i>), an Arctic key species, after an acute exposure (48 h) to environmentally realistic concentrations of either mechanically dispersed oil (MDO), chemically dispersed oil (CDO) or burned oil residues (BO) (N = 58–60 per treatment). Following exposure, fish were monitored in a ...
    • Effects of chronic crude oil exposure on the fitness of polar cod (Boreogadus saida) through changes in growth, energy reserves and survival 

      Vieweg, Ireen; Bender, Morgan Lizabeth; Semenchuk, Philipp; Hop, Haakon; Nahrgang, Jasmine (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-21)
      Climate models predict extended periods with sea-ice free Arctic waters during the next decade, which will allow more shipping activity and easier access to petroleum resources. Increased industrial activities raise concerns about the biological effects of accidental petroleum release on key species of the Arctic marine ecosystem, such as the polar cod (<i>Boreogadus saida</i>). This study examines ...
    • Effects of chronic dietary petroleum exposure on reproductive development in polar cod (Boreogadus saida) 

      Bender, Morgan Lizabeth; Frantzen, Marianne; Vieweg, Ireen; Falk-Petersen, Inger-Britt; Johnsen, Helge Kreutzer; Rudolfsen, Geir; Tollefsen, Knut Erik; Dubourg, Paul; Nahrgang, Jasmine (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-10-04)
      Increasing human activities in the Arctic raise the risk of petroleum pollution, thus posing an elevated risk for Arctic organisms to be chronically exposed to petroleum compounds. The endocrine disrupting properties of some of these compounds (i.e. polycyclic aromatic hydrocarbons [PAHs]) present in crude oil may have negative effects on the long and energy intensive reproductive development of ...
    • Effects of dietary crude oil exposure on molecular and physiological parameters related to lipid homeostasis in polar cod (Boreogadus saida) 

      Vieweg, Ireen; Bilbao, Eider; Meador, James P.; Cancio, Ibon; Bender, Morgan Lizabeth; Cajaraville, Miren P.; Nahrgang, Jasmine (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-17)
      Polar cod is an abundant Arctic key species, inhabiting an ecosystem that is subjected to rapid climate change and increased petroleum related activities. Few studies have investigated biological effects of crude oil on lipid metabolism in this species, despite lipids being a crucial compound for Arctic species to adapt to the high seasonality in food abundance in their habitat. This study examines ...
    • Growth and metabolism of adult polar cod (Boreogadus saida) in response to dietary crude oil 

      Nahrgang, Jasmine; Bender, Morgan Lizabeth; Meier, Sonnich; Nechev, Jordan; Berge, Jørgen; Frantzen, marianne (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-06)
      The increasing human presence in the Arctic shelf seas, with the expansion of oil and gas industries and maritime shipping, poses a risk for Arctic marine organisms such as the key species polar cod (<i>Boreogadus saida</i>). The impact of dietary crude oil on growth and metabolism of polar cod was investigated in the early spring (March–April) when individuals are expected to be in a vulnerable ...
    • Long-term reproductive effects of chronic dietary petroleum exposure on polar cod (Boreogadus saida) 

      Bender, Morgan Lizabeth (Master thesis; Mastergradsoppgave, 2015-11-15)
      Increased human activities in the Arctic pose a high risk for Arctic organisms to be chronically exposed to petroleum compounds. The endocrine disrupting properties of some of these compounds coupled with the metabolic costs of detoxification may have negative effects on the long and energy intensive reproductive development of polar cod, an Arctic keystone species. In the present study, selected ...
    • No observed developmental effects in early life stages of capelin (Mallotus villosus) exposed to a water-soluble fraction of crude oil during embryonic development 

      Nahrgang, Jasmine; Granlund, Adina Cassandra; Bender, Morgan Lizabeth; Sørensen, Lisbet; Greenacre, Michael; Frantzen, marianne (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-12)
      The rise in offshore oil and gas operations, maritime shipping, and tourism in northern latitudes enhances the risk of oil spills to sub-Arctic and Arctic coastal environments. Therefore, there is a need to understand the potential adverse effects of petroleum on key species in these areas. Here, we investigated the effects of oil exposure on the early life stages of capelin (Mallotus villosus), ...
    • Polar Cod in a Changing Arctic. Toxicity of crude oil on sensitive life history stages of a key Arctic species 

      Bender, Morgan Lizabeth (Doctoral thesis; Doktorgradsavhandling, 2020-06-12)
      Environmental change in the Arctic is occurring at an unprecedented rate with a loss of sea ice and warmer sea temperatures, simultaneously as increased human activity in the Arctic poses a risk of petroleum pollution. The potential future of a key Arctic forage fish, polar cod (<i>Boreogadus saida</i>), was investigated using laboratory simulations of oil spills during sensitive life-history stages: ...
    • Potential effects of petroleum pollution and increasing water temperature on life-history traits in polar cod (Boreogadus saida) 

      Bender, Morgan Lizabeth; Frantzen, Marianne; Geoffroy, Maxime; Meador, James P.; Nahrgang, Jasmine (Conference object; Konferansebidrag, 2017)